| Code | Name | Region |
|---|---|---|
| ATTEL | Telfs | |
| ATTEC | Tenneck | |
| ATTFS | Terfens | 7 |
| ATTNG | Ternberg | 4 |
| ATTNZ | Ternitz | |
| ATTEU | Teufenbach | 6 |
| ATTEX | Texing | |
| ATTGU | Thalgau | 5 |
| ATTHM | Thalheim | 6 |
| ATTBW | Thalheim Bei Wels | 4 |
| ATTHR | Thaur | 7 |
| ATTHY | Thaya | 3 |
| ATTHS | Theiss | 3 |
| ATTHG | Thening | 4 |
| ATETE | Stetten | 3 |
| ATSER | Steyr | |
| ATSYG | Steyregg | 4 |
| ATSYM | Steyrermuhl | 4 |
| ATSAR | Stift Ardagger | |
| ATSND | Stixneusiedl | 3 |
| ATSKB | Stockenboi | 2 |
| ATSTC | Stockerau | 3 |
| ATSTO | Stoob | |
| ATSTR | Stottera | 1 |
| ATST6 | Straden | 6 |
| ATSRB | Strass Im Strassertale | 3 |
| ATSHF | Strasshof An Der Nordbahn | 3 |
| ATSWN | Strasswalchen | 5 |
| ATSZI | Stratzing | 3 |
| ATSBG | Strengberg | 3 |
| ATSTL | Strobl | 5 |
| ATNIS | Stronsdorf | 3 |
| ATSZ5 | Stuhlfelden | 5 |
| ATSUB | Suben | |
| ATSPZ | Spitz | |
| ATSGZ | Sprognitz | 3 |
| ATSBA | St. Bartholoma | 6 |
| ATSPU | Stadl Paura | 4 |
| ATSTA | Stainach | |
| ATSTZ | Stainz | |
| ATSTM | Stams | |
| ATANG | Stang | 3 |
| ATSAS | Stans | 7 |
| ATSTD | Steeg | |
| ATSTB | Stegersbach | 1 |
| ATSDD | Stein An Der Donau | 3 |
| ATSBC | Steinabruckl | 3 |
| ATSEN | Steinabrunn | |
| ATSTH | Steinach | 4 |
| ATSSS | Steinberg | 1 |